Date: 1741

"A few useful Things perhaps, mixed and confounded with many Trifles and all manner of Rubbish fill up their Memories, and compose their intellectual Possessions. 'Tis a great Happiness therefore to distinguish things aright, and to lay up nothing in the Memory but what has some just Value in it,...

— Watts, Isaac (1674-1748)

Date: 1741

"Whatsoever Improvements arise to the Mind of Man from the wise Exercise of his own reasoning Powers, these may be called his proper Manufactures; and whatsoever he borrows from Abroad these may be termed his foreign Treasures: both together make a wealthy and happy Mind."

— Watts, Isaac (1674-1748)

Date: 1754

"But yet so difficult is the intellectual commerce, so narrow the intellectual fund, that the wisest men are frequently obliged to employ their money like counters, and their counters like money, in one case, however, without loss, in the other without fraud. We may be said to do the first, that ...

— St John, Henry, styled first Viscount Bolingbroke (1678-1751)

Date: 1759

"That is, let not great Examples, or Authorities, browbeat thy Reason into too great a diffidence of thyself: Thyself so reverence as to prefer the native growth of thy own mind to the richest import from abroad; such borrowed riches make us poor."

— Young, Edward (bap. 1683, d. 1765)

Date: 1792

"The variety of nature is such, that new objects, and new combinations of them, are continually adding something to our fund, and inlarging our collection: while the same kind of object occurring frequently, is seen under various shapes; and makes us, if I may so speak, more learned in nature."

— Gilpin, William (1724-1804)